Atmospheric square tank with external stiffeners, painted white

Atmospheric square tanks

Rectangular, non-pressurised tanks for platforms and plants

Flat-plate tanks for storing liquids at atmospheric pressure, designed to fit the space you have and built to your datasheet.

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Typical services

Fresh and potable waterService waterOpen drainSumpDiesel storageHot oilProduction chemicals such as corrosion inhibitor and caustic

How they are designed

Wall thickness and stiffening are calculated with Roark’s formula for the stress and deflection of flat plates under the liquid load. Flat plates are reinforced with corner stiffeners and a base frame, which keeps weight down without losing strength.

Configurations

Fixed or portable. Mounted on legs or on a skid. Fixed flat roof.

Fittings

Nozzles and manholesLevel gaugeVent with screenDip pipeInternal oil separator for sump dutyService platform, ladder and handrail on larger tanks

Materials and protection

Carbon steel or stainless steel, with internal and external coating or internal lining to suit the contents.

Testing

Weld inspection by radiography and dye penetrant, and a full water test before delivery.

Standards

Designed using Roark’s formula, with ISO 9001:2015 quality management.

Documents

On requestAtmospheric square tanks datasheetRequest a copy →
On requestDrawings for your configurationRequest a copy →
On requestProtankgrüp brochureRequest a copy →

Request a quote

Send us the datasheet, or the contents, volume and available space, and an engineer will reply.

Request a quoteenquiry@protankgrup.com